#1 Henry Cavill

Henry Cavill shared his embarrassing moment-"It's happened to me once…and it was very embarrassing. A girl had to be on top of me, she had spectacular breasts, and I hadn't rearranged my…stuff into a harmless position. She's basically rubbing herself all over me, um, it got a bit hard. I had to apologize profusely afterwards. It's not great when you're in a professional acting environment and somebody gets a boner, is it? No, not acceptable."

#2 Hugh Grant

Hugh confesses very frankly that he has loved all his intimate scenes and arousals: "I've always enjoyed $ex scenes, though you're not really supposed to. The classic answer is – Oh, it's not $exy at all because there are so many technicians standing around. But I've always found them extremely arousing."

#3 Ashton Kutcher

The No Strings Attached star Ashton Kutcher excerpts- "I just start by apologizing ... I think somebody told me, and I'm not sure who the actor was. I think it was Sir Laurence Olivier who said it, but ... I always use Sir Laurence. When in doubt, use Sir Laurence Olivier. I think he said something to the effect of, "I apologize if I get aroused and I apologize if I do not get aroused." And you have to say it with the accent if you do it. But there is sort of always this awkward state of, is this OK, is that OK? And then in between it's like, just, let's act like nothing happened. And then you see how good of an actor you really are."

#4 Jake Gyllenhaal

The Southpaw famed Jake was no stranger to that feeling :"I've had a pretty illustrious career at this point, but the hardest thing has been pretending to be turned on by Anne Hathaway. And I pride myself on really having pulled it off."

#5 Jesse Metcalfe

Jesse from the Desperate Wives has to say that- "As a matter of fact, in the first scene we ever had, where Gabriella and John first had $ex, we were rehearsing and then the director was like, 'OK, get out of bed, we have to reset the set', and I was like, 'I need a minute.'"

#6 Samuel L. Jackson

Samuel has it pretty hard while shooting for such scene "I hate n*de scenes, you have to ask where it's okay to touch and where it's not okay to touch and then you have to apologise for getting excited or for not getting excited. I'm sorry if I do and I'm sorry if I don't. It's a weird conversation to have."

#7 Seth Rogens

#8 Ewan McGregor

Ewan says that it was really tough for him when he got aroused when filming with actress Alice Krige: "I had to lie on top of her and they kept on pulling back the sheet. They wanted to see my naked bum and her naked thigh, so we couldn't wear any underwear. It was very embarrassing. It was a case of, 'Cut! We'll go again.' I calmed myself down and we just got on with the scene."